Sliding window and window-frame.



190s. 2 SHEBTS-SHEET 1.

PATENTED OCT. 30 W. BENTLEY'& W; J. D. THOMPSON. SLIDING WINDOWAND WINDOW FRAME.

APPLICATION FILED FEB. 25. 1904. RENEWED APR. 16, 1905.

No. 834,453." PATBNTED 001". so, 1906.

W. BENTLEY 6: W.'J. D. THOMPSON. SLIDING WINDOW ANDWINDOW FRAME.

APPLICATION FILED FEB. 26. 1904. RE ED AP 16, 1906. 2 SHEETS-SHEET 2.

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UNITED STATES PATENT; OFFI E.

WILLIAM BENTLEY-AND WILLIAM J. D. THOMPSON, OF TORONTO, ONTARIO, CANADA.

SLIDING WINDOW AND WINDOW-FRAME.

. Specification of Letters Patent.

Patented Oct. 30, 1906.

Application filed February 25, 1904. Renewed April 16,1906- Serial No. 311,852.

dispensed with by fitting each side of the window-frame with a single window-guide and providing the window-sash with guiding members, each having two contact-points to engage the op osite sides of the windowguide and ho the window-sash relatively thereto when stationary and during its sliding movements.

To effect a substantially tight contact of the Window-sash when closed with the window-guides, the latter have on their outer surfaces raised offsets onto which ride the outer contact-points of the guiding members as the window-sash slides into its closedposition to draw it tightly against the inner or fixed pathway.

In the drawings, Figure 1 is a front elevation of a window-frame and sliding windowsash adapted for building purposes. Fig. 2 is a transverse section on the lines I) b, Fig. 1. Fig. 3 is a perspective view of one of the guid ing members for the window-sash. Fig. 3 is a vertical section onthe linea a, Fig. 5. Fig.3 is a transverse section on the line b b, Fig. 5. Fig. 4 is a perspective viewof a part of one of the window-guides. are vertical and transverse sections, respecress the window-sash away fromtively, of a portion of one of the windowguldes. Y

Like letters of reference refer to like parts throughout the specification and drawings.

The window-sash a, which is made to fit loosely between the sides of the windowframe I), has guiding members 0, the-contactpoints of which ride on the opposite sides of the window-guides d, fastened to or forming part of the sides I) of the window-frame and extending from the top to the bottom of the slideway for the window sash.

To prevent any material variation in the slideway, the window-guides d are 1preferably made of metal of a uniform gage t roughout their entire length, and riding on the opposite sides of the window-guides d are the inner and outer contact-pointsf and g, respectively, of the guiding members 0, located at or near the corners of the window-sash to maintain it throughout its entire length properly positioned relatively to the window-guides.

By reference to Figs. 3, 3, and 3 of the drawings it will benoticed that each guiding member 0 consists of a bifurcated plate, the one arm h of which is adapted to lie a ainst theadjacent surface of the window-sas and be fastened thereto and the other arm '1', of which projects outwardly from the arm h and connected to the o posite ends of the.

arm L and on its outer si e is a spring is, having an elongated slot 1 registering with the slot and movable in the slots j and l is an anti iction-roller m, having. its spindles 0 contained between the adjacent faces of the armi and spring 7c. Extending from the arm h, at an op osite angle'to the arm 45, is a stud 1), upon w ch is mounted an antifrictionroller q, opposed to the antifriction-roller m, the stud and antifriction-roller q for the purpose of economy of space being'contained in a recess 4", formed in t e window-sash.

By reference to the drawings it will be noticed that the slotted arms '5 of the guiding members at each side of the window-sash aline and overlap the window-guides to provide a suflicient surface for the outer and inner contact-points of the guiding members to ride upon, and by using antifrictional rollers for these contact-points the wear upon the guiding members and window-guides is minimized and the window-sash can freely move in its slideways.

During the sliding movement of the win dow-sash the inner and outer contact-points engage the window-guide and hold the window-sash relatively thereto, the inner contact-points or antifrictional rollers 1 being so arranged as to exert themselves against the inner surfaces of and press the window-sash away from the window-guides to avoid any .frictional contact therewith during its sliding movement, the spring is yielding sufficiently to allow of the displacement of the outer eontact-points and compensate for any variation in the gage of the window-guide.

The window-sash owing to its loose fit between the sides of the window-frame when pressed away from the window-guides provides crevices or inlets for the air-currents between its side edges and the adjacent sur faces of the sides of the window-frame, and to entirely close these inlets when the window is shut the outer surfaces of the windowguides are provided with raised offsets 8, onto which ride the outer contact-points of the guiding members as the window-sash moves into its closed position. These outer contact-points when they have engaged the raised offsets draw the window'sash tightly against the adjacent faces of the windowguides with sufficient pressure to completely close any crevices or inlets which may have previously existed between the edges of the window-sash and sides of the window-frame. The raised offsets s are preferably formed by indenting the inner faces of the windowguides, so that indented seats may be provided for the inner contact-points when the outer contact-points are seated upon the raised offsets to relieve the guiding members of the contending strains to which they would have been subjected by the contactpoints if the indented seats had not been pro vided for the inner contact-points, as in this way the relative distance of the inner and outer contact-points from each other will be maintained during the entire movement of the window-sash and when it is at rest.

By reference to Fig. 1 of the drawings, it will be noticed that the top of the windowframe is fitted with a window-stop t corresponding to the window-guides (if, so that when the window sash is drawn tightly againstthe window-guides its top edge will engage the adjacent face of the window-stop t and prevent the ingress of the air-currents between its top edge and top of the windowframe. By'this means we are able to loosely fit the window-sash between the opposite sides of the window-frame and at the same time establish a perfect contact between the window-sash and the window-guides and stops to close all crevices between the window-sash and window-frame when the window-sash is in its closed position. We are also able by this construction to compensate for the necessity of allowing for the shrinkage and swelling of the parts of the window, and we are further able to prevent any vibra tion of the window-sash either while it is in motion or at rest. To fasten the windowguides to the window-frame, we prefer to longitudinally groove the window-frame sides and place the windowguides in these longitu'dinalgrooves 3, holding them therein by washers-4, countersunk in the window-frame sides and partly contained in longitudinal slots 5 in the window-guides, the length of the slots being less than the diameter of the washers, to enable the washers to contact the ends of the slots and prevent the longitudinal displacement of the window-guides 1n the window-frame grooves and their lateral displacement therefrom, which is effected by their contact with the side edges of the slots.

To hold the window-sash in a closed or open position, a suitable locking device, such as that shown at 0 and 19, may be used.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a sliding window, the combination of the windowfran1e, a window-sash contained therein, a single window-guide at each side of the window-frame overlapping the inner faces of the sides of the window-sash, and guiding members on the window-sash to constantly engage the window-guides and position the window-s ash relatively thereto.

2. In a sliding window, the combination of a window-frame, a window-sash contained therein, a single Window-guide at each side of the window-frame overlapping the inner faces of the sides of the window-sash, and guiding members on the window-sash each having two contact-points for constantly engaging opposite sides of the window-guides, to position the sash relatively thereto.

3. Ina sliding window the combination of the window-sash, window-guides therefor, guiding members on the window sash to engage the window-guides, and means for drawing the window-sash to the window guides as it moves into its closed position.

4. In a sliding window the combination of the window-sash, window-guides therefor, guiding members on the window-sash to engage the window-guides, means for drawing the window-sash to the window-guides as it moves into its closed position and means for moving the window-sash away from the window-guides as it begins to move into its open position.

5. In a sliding window the combination of the window-sash, window-guides therefor, guiding members for the windowsash each having two contact-points to engage the op posite sides of the window-guides, raised offsets for the window-guides positioned to be lIO engaged by the contact-points asthe windowsash moves into its closed position.-

6. In a sliding window the combination of the window-sash, window-guides therefor, guiding members for the window-sash, each having two contact-points to engage the opposite sides of the window-guides, indented offsets for the window-guides positioned to be engaged by the contact-points as the windowsash slides into its closed osition, the outer contact;points of the gui ing,members engaging the raised surfaces of-theoffsets to draw the window-sash against-the windowguides and the inner contact-points being then adapted to enter the indented recesses.

,7. In a sliding window the combination of the window-sash window-guidestherefor, guiding members for the window-sash, each having two contact-points to engagethe opposite sides of the window-guides, indented offsets for the window-guides Positioned to be engaged by the contact-points as the windowsash slides into its closed position, the outer contact-points of the guiding members engaging the raised surfaces of the offsets to draw the window-sash against the windowguides, the inner contact-points being then adapted to enter the. indented recesses, and

the opposite sides of the window-guides and sup orting means therefor to hold them relative y positioned to each other and to the window-guide.

9.. In a sliding window the combination of the window-sash, window-guides therefor, guiding members for the Window-sash, each consisting of two oppositely-disposed antifriction-rollers to engage the opposite sides of the window-guides and supplorting means therefor to rigidly hold one of t e antifriotionrollers and to yieldingly hold the other to engage the opposite sides of the window-guides.

Toronto, February 9, 1904.

WM. BENTLEY W. J. D. THOMPSON. In presence of C. H; RIoHEs, L. F. BROOK.

single window-guide at- 

